The arbiter - the precursor to the modern baseball umpire - watches a recent vintage base ball game on August 4, 2012 at the Swansea Moose Lodge fields between the Belleville Stags and the St. Louis Unions. He is portrayed by "Judge" David P. Showmaker, who is wearing authentic period attire. The derby is an original from the late 19th century, and was bought on eBay. The other clothes were bought from a shop that specializes in historical clothing. The teams played by rules of the game as they were in the late 19th century -- when there were no umpires, only a lone arbiter to make judgement calls.